| Pioneer Energy Consultants Ltd | Professional & scientific | 2018 |
| Pirlea Trans Ltd | Transport & logistics | 2021 |
| Pizza 2 Go Renfrew Limited | Hospitality | 2025 |
| Platinum Executive Properties Limited | Other services | 2019 |
| Plsea Ltd | Hospitality | 2019 |
| Pollokshields Developments Limited | Real estate | 2004 |
| Power & Traction Services Ltd | Manufacturing | 2018 |
| Practical Financial Exams Limited | Education | 2020 |
| Pragmis Limited | Energy | 2000 |
| Premier FM Ltd | Information & communication | 2024 |
| Prestige Installs (Scot) Ltd | Construction | 2024 |
| Print Finishers & Laser Dies Limited | Manufacturing | 1998 |
| Pro NRG Supplements Ltd | Wholesale & retail | 2022 |
| Professional Beauty Systems (Holdings) Limited | Manufacturing | 2006 |
| Professional Beauty Systems Limited | Manufacturing | 1982 |
| Proficio Limited | Other services | 1998 |
| Profuturus Unlimited | Professional & scientific | 2014 |
| Progressive Brands Ltd | Professional & scientific | 2023 |
| Property Managers Association Scotland Limited | Other services | 1918 |
| PRW 502 Limited | Wholesale & retail | 2016 |
| Puerto Banus Yacht Charter Limited | Administrative & support | 2021 |
| Purechak Ltd | Real estate | 2026 |
| QA QC Construction Ltd | Construction | 2024 |
| QAB Systems Limited | Professional & scientific | 2009 |
| R.E.M.M.T. Ltd | Real estate | 2018 |
| R.K.R Inspection Limited | Professional & scientific | 2025 |
| Ra-Access Ltd | Construction | 2014 |
| Raphaelson Rentals Limited | Administrative & support | 2018 |
| Rashielee Care Home Limited | Professional & scientific | 2006 |
| Rayzor International Limited | Wholesale & retail | 2005 |
| RD Joiners Ltd | Construction | 2021 |
| Ready for Sport Camps Ltd | Arts & recreation | 2025 |
| Realm ISD Limited | Professional & scientific | 2012 |
| Recycled Renewables Limited | Wholesale & retail | 2013 |
| Red Rock Automation Limited | Manufacturing | 2010 |
| Redongo HSW Limited | Professional & scientific | 2018 |
| Redongo Limited | Professional & scientific | 2019 |
| Reekie Machine (Sales) Limited | Manufacturing | 1947 |
| Reekie Machining Limited | Manufacturing | 1993 |
| Reem Gleam Cleaning Limited | Other services | 2016 |
| Refined Shine Mobile Car Care Ltd | Administrative & support | 2023 |
| Reidtech Limited | Professional & scientific | 2018 |
| Reilly Ventures Ltd | Financial services | 2024 |
| Remo Tech Renfrew Ltd | Other services | 2024 |
| Renbow Haircare Limited | Manufacturing | 2009 |
| Renewable and Heat Ltd | Construction | 2026 |
| Renewable Parts Limited | Wholesale & retail | 2011 |
| Renfrew Barbers Khero Limited | Other services | 2025 |
| Renfrew Commercials Limited | Wholesale & retail | 2021 |
| Renfrew Cuts Ltd | Other services | 2024 |
| Renfrew Development Trust | Other services | 2014 |
| Renfrew Drycleaners Ltd | Other services | 2012 |
| Renfrew Electrical Services Ltd | Construction | 2024 |
| Renfrew Local Ltd | Wholesale & retail | 2025 |
| Renfrew Properties Limited | Real estate | 2008 |
| Renfrew Scratch & Dent Ltd | Wholesale & retail | 2025 |
| Renfrew Trading Ltd | Wholesale & retail | 2019 |
| Renfrew Transport Services Limited | Transport & logistics | 2013 |
| Renfrew Transport Solutions Ltd | Wholesale & retail | 2018 |
| Renfrewshire Rentals Limited | Real estate | 2023 |
| Renfrewshire Windows Limited | Construction | 2017 |
| Rennie & Nicol Commercials Limited | Wholesale & retail | 1990 |
| Renovation Solutions Scotland Limited | Professional & scientific | 2012 |
| Rentri Ltd | Real estate | 2025 |
| REO Detailing Limited | Administrative & support | 2025 |
| REO Software Solutions Ltd | Professional & scientific | 2016 |
| Replyfe Ltd | Arts & recreation | 2020 |
| Resolution Analytical Consultancy Limited | Professional & scientific | 2005 |
| Retail Experiences (Scot) Limited | Wholesale & retail | 2019 |
| Retino AI Limited | Professional & scientific | 2025 |
| Retro Group Ayrshire Ltd | Hospitality | 2024 |
| RFD Group Holdings Ltd | Real estate | 2026 |
| Rfdz Ltd | Hospitality | 2026 |
| Richard Cook Photography Limited | Information & communication | 2009 |
| Risemuir Limited | Other services | 2009 |
| Rjlcc Limited | Manufacturing | 2024 |
| RK Erskine Ltd | Professional & scientific | 2023 |
| RK Real Estate (Scot) Ltd | Construction | 2019 |
| Rkal Property Ltd | Real estate | 2026 |
| RLM Scaffold Services Ltd | Construction | 2025 |
| Robscot Builders Ltd | Construction | 2011 |
| Robust Property Limited | Real estate | 2006 |
| Rockells Limited | Professional & scientific | 2024 |
| Roseum Financial Planning Limited | Financial services | 2023 |
| ROSIEJOE2515 Limited | Wholesale & retail | 2025 |
| Ross & Wallace Limited | Construction | 2022 |
| Rossboomsocks Limited | Manufacturing | 2020 |
| Rossford Limited | Agriculture & fishing | 1994 |
| Rrhg Holdings Ltd | Financial services | 2024 |
| Russell Penny Ltd | Construction | 2026 |
| S & J Combe Transport Ltd | Transport & logistics | 2011 |
| S N J Landscapes Limited | Administrative & support | 2010 |
| S&K Dance Ltd | Arts & recreation | 2024 |
| S&S Properties Scotland Ltd | Real estate | 2023 |
| S.I.B Fabrications Ltd | Manufacturing | 2025 |
| S.M Brakes Ltd | Wholesale & retail | 2020 |
| Saarm Padel Ltd | Arts & recreation | 2025 |
| Sadco Retail Ltd | Wholesale & retail | 2012 |
| Sadiqali Ltd | Hospitality | 2022 |
| Saikou Apparel Ltd | Wholesale & retail | 2020 |